CN106243472A - A kind of nanometer titanium dioxide antibiotic film and preparation method thereof - Google Patents

A kind of nanometer titanium dioxide antibiotic film and preparation method thereof Download PDF

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Publication number
CN106243472A
CN106243472A CN201610616456.XA CN201610616456A CN106243472A CN 106243472 A CN106243472 A CN 106243472A CN 201610616456 A CN201610616456 A CN 201610616456A CN 106243472 A CN106243472 A CN 106243472A
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parts
powder
film
oleamide
component
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李玉裕
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Jiangyin Dehui Heat Shrinkable Packaging Material Co Ltd
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Jiangyin Dehui Heat Shrinkable Packaging Material Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
    • A23B7/154—Organic compounds; Microorganisms; Enzymes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
    • A23B7/157—Inorganic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/12—Mixture of at least two particles made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L2205/00—Polymer mixtures characterised by other features
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    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

Abstract

A kind of nanometer titanium dioxide antibiotic film, including component A: ldpe resin, type low density polyethylene resin, polypropylene, nano titanium oxide, arhat pitch, sabinol, chitosan, antifoggant, modenite powder, SiO 2 powder, titanate esters, oleamide, EVA；B component: ldpe resin, type low density polyethylene resin, polypropylene, nano titanium oxide, ethanolamine, antifoggant, modenite powder, SiO 2 powder, titanate esters, oleamide, EVA;Component C: ldpe resin, type low density polyethylene resin, polypropylene, modenite powder, binding agent, titanate esters, oleamide, EVA.This kind of film not only antibacterial ability is strong, and antifogging action is good, but also has stronger obstructing capacity, and this film does not uses silver element, the most i.e. provides cost savings, and prevents again the harm that human body is caused by heavy metal.

Description

A kind of nanometer titanium dioxide antibiotic film and preparation method thereof
Technical field
The present invention relates to food preservative technology field, particularly to a kind of nanometer titanium dioxide antibiotic film and preparation side thereof Method.
Background technology
Preservative film is a kind of plastic packing product, is generally made by polyreaction for masterbatch with ethylene, is mainly used in micro- The occasions such as the heating of ripple stove food, refrigerator food preserve, fresh and prepared food packaging, family life, sales field, supermarket, hotel and Industrial food packaging applications is all widely used.Different according to material therefor and interpolation plasticiser, preservative film is divided into many Type, is applicable to different occasions.Convenient with it, economic, the attractive in appearance feature of preservative film receives the favor of people.
Along with agricultural, plant husbandry, the development of aquaculture, the continuous progress of technology, vegetable, melon and fruit, the kind of edible fungi, product Measure more and more higher, need cold storing and fresh-keeping storage package, pig, cattle, sheep, chicken, duck, fishing, the breeding scale of goose, industrialized slaughtering, point Dress, cold preservation, all propose new higher requirement to fresh-keeping packaging.Conventional PE, PVC fresh-preserving film cannot meet large-tonnage product collection Closing the needs of packaging, fresh-keeping effect does not reaches requirement yet.The PP of routine, PE, PVC film, can not meet far away antifog fresh-keeping Packing instructions, the antifog film of booth is not suitable for refrigeration package, PP, PE anti-fog thin film yet, can only play anti-in a short time yet The effect that mist is fresh-keeping, timeliness is the shortest.Especially, vegetable, melon and fruit, edible fungi, all kinds of cold fresh meat food, do not carried out sterilizing and added Work, has the various bacteria such as staphylococcus aureus, Aerugo PAO1, Salmonella and retains in process of manufacture, existing guarantor Fresh film, antifog preservative film do not have sterilizing function, it is impossible to suppress survival and the breeding of these antibacterials, so fresh keeping time is the shortest.
Summary of the invention
It is an object of the invention to provide little nanometer titanium dioxide antibiotic film of a kind of toxic and side effects and preparation method thereof.
The above-mentioned purpose of the present invention has the technical scheme that a kind of nanometer titanium dioxide antibiotic film, By weight, including
Component A: ldpe resin 110～120 parts, type low density polyethylene resin 120～130 parts, polypropylene 9 ～16 parts, nano titanium oxide 10～16 parts, arhat pitch 1～3 parts, sabinol 1～3 parts, chitosan 2～4 parts, antifoggant 4～ 9 parts, modenite powder 3～6 parts, SiO 2 powder 6～10 parts, titanate esters 2～5 parts, oleamide 1～3 parts, EVA3～6 Part；
B component: ldpe resin 85～95 parts, type low density polyethylene resin 105～110 parts, polypropylene 8 ～15 parts, nano titanium oxide 7～12 parts, ethanolamine 4～9 parts, antifoggant 10～15 parts, modenite powder 1～3 parts, dioxy SiClx powder 3～6 parts, titanate esters 1～3 parts, oleamide 1～3 parts, EVA2～5 parts;
Component C: ldpe resin 100～110 parts, type low density polyethylene resin 105～115 parts, polypropylene 8 ～15 parts, modenite powder 3～6 parts, binding agent 7～16 parts, titanate esters 3～5 parts, oleamide 2～3 parts, EVA 1～4 parts.
As preferably, by weight, including
Component A: ldpe resin 105 parts, type low density polyethylene resin 125 parts, polypropylene 13 parts, nano-silica Change titanium 13 parts, arhat pitch 2 parts, sabinol 2 parts, chitosan 3 parts, antifoggant 7 parts, 4.5 parts of modenite powder, SiO 2 powder 8 parts, titanate esters 3.5 parts, oleamide 2 parts, EVA 4.5 parts；
B component: ldpe resin 90 parts, type low density polyethylene resin 108 parts, polypropylene 11.5 parts, nanometer two Titanium oxide 9.5 parts, ethanolamine 6.5 parts, antifoggant 12.5 parts, 2 parts of modenite powder, SiO 2 powder 4 parts, titanate esters 2 Part, oleamide 2 parts, EVA3.5 part;
Component C: ldpe resin 105 parts, type low density polyethylene resin 110, part polypropylene 12.5 parts, mercerising boil Stone powder 4.5 parts, binding agent 11.5 parts, titanate esters 4 parts, oleic acid acyl 2.5 parts, EVA2.5 part.
Owing to the nano material in nano-titanium dioxide film is under the illumination less than 400nm, form electronics and hole. With the O adsorbing its surface2And H2O effect, forms super oxyradical, and positron produces hydroxyl free radical, hydrogen with water molecules Oxygen-derived free radicals has powerful oxidative decomposition capacity, and it can decompose almost all of organic compound and a part of inorganic matter, will They resolve into nontoxic carbon dioxide and water.And negatron and oxygen are combined into active oxygen, the most super oxidative ionic, have the strongest Oxidative decomposition capacity, it can destroy the cell membrane of antibacterial, the protein of fixed line antibacterial, while killing antibacterial, decomposes The harmful complex discharged on antibacterial corpse.And arhat pitch, sabinol are natural antibacterial agents, it is as the composition in component A, Match with nano titanium oxide and be prepared to inner layer film and directly fit with food, so can thin in food rapidly Bacterium carries out killing action, and substantially without people there being any toxic and side effects.
And containing ethanolamine in B component, and ethanolamine can not only have antibacterial ability, and it is also a kind of anticorrosion Inhibitor, a kind of surfactant, and its stability especially is strong, plays food so it can penetrate in inner layer film The effect of permanent anti-bacterial refreshing.Due to, component A, B component and component C all contain modenite powder, this kind of stone powder itself Be exactly the material of porous type, so that the finished film after making is with a certain amount of pore, it is possible to regulation film in humidity with And the concentration of carbon dioxide and oxygen, and then reduce the Repiration of vegetables and fruits group food, it is ensured that vegetables and fruits group food fresh.
As preferably, the surface of described SiO 2 powder is coated with starch.
So when the semi-finished product film made is after the processing step of downward-blowing water-cooling, and starch will be dissolved in water, from And the pore quantity in inner layer film and mesopelagic layer will increase increase further, so packing vegetables with the preservative film of the present invention The when of the food such as dish, fruit, it is possible to be easy to the ethylene by food produces and discharge rapidly, delayed food to rot Time.Further, the antifoggant in mesopelagic layer can also be easier to infiltrate at inner layer film, thus has reached the lasting of preservative film Anti misting capability.
Further, since do not add silicon dioxide in the raw material of outer membrane, then the pore of outer membrane is mainly derived from mercerising The hole that zeolite powder self is carried, so beyond volatile materials such as ensureing ethylene can pass through, it is also possible to outside obstruct Antibacterial or the impurity on boundary enter in preservative film, thus have reached real fresh-keeping effect.
As preferably, described antifoggant is fluorine class nonionic surfactant and the mixture of hc-surfactant.
As preferably, described fluorine class nonionic surfactant includes perfluoroalkyl Folium hydrangeae strigosae alkali, perfluoroalkyl ethers and acetyl One or more in base trifluoromethyl valyl glycine.
As preferably, described hc-surfactant includes polyol fatty acid ester, hydroxypropyl Pentamethylene oxide. triol and third One or more in glycol dioleate.
Antifoggant gradually from film matrix dialysis out time, antifog monolayer will be formed at film surface, Make the water condensing in surface will not form water droplet, but moisten equably and form a moisture film the thinnest on the surface of thin film；And This moisture film will not be dropped on food, appropriateness can maintain packaging humidity, to reach fresh-keeping purpose again.
Meanwhile, fluorine class nonionic surfactant has stronger stability, and it can be good at and hydrocarbon surface Activating agent mixes mutually, thus also the most just can be enclosed in hc-surfactant with regard to it, and hc-surfactant is played protection Effect, improves the stability of hc-surfactant.
As preferably, described binding agent is WH-5A/B organic silicon type thermostable heat-conductive glue.
Employing this kind of WH-5A/B organic silicon type thermostable heat-conductive glue, it can make the cure shrinkage of finished film be less than 0.2%, fully ensure that the integrity of finished film.And its heat stability is strong, is suitable for making between-60 DEG C～+250 DEG C With, thus also enhance finished product film strength to a certain extent, extend the service life of finished film.And, do so is also Substantially increase the barrier property of whole outer membrane, prevent extraneous antibacterial and impurity from easily entering the inside of inner layer film.
The preparation technology of a kind of nanometer titanium dioxide antibiotic, comprises the following steps:
The preparation of raw material of inner layer film:
S1, by the modenite powder in component A by specifying quality to be entered by the fineness being milled into 200～400 mesh after high-speed stirred Row is standby；
S2, ldpe resin by component A, type low density polyethylene resin, polypropylene, nano titanium oxide, Arhat pitch, sabinol, chitosan, antifoggant, SiO 2 powder, titanate esters, oleamide and EVA are passed through by appointment quality The mode of high-speed stirred uniformly mixes acquisition mixture one；
S3, mixture one mixed melting obtained in the modenite powder obtained in S1 and S2 is joined in extruder one and carries out Extrusion；
The preparation of raw material of mesopelagic layer:
D1: by the modenite powder in B component by specifying quality to be entered by the fineness being milled into 300～500 mesh after high-speed stirred Row is standby；
D2: by the ldpe resin in B component, type low density polyethylene resin, polypropylene, nano titanium oxide, Ethanolamine, antifoggant, SiO 2 powder, titanate esters, oleamide and EVA are by specifying quality equal by the way of high-speed stirred Even mixing obtains mixture two；
D3: mixture two mixed melting obtained in the modenite powder obtained in D1 and D2 is joined in extruder two and carries out Extrusion；
The preparation of raw material of outer membrane:
By ldpe resin, type low density polyethylene resin, polypropylene, modenite powder, binding agent, titanate esters, Oleamide and EVA are by melted after specifying quality uniformly to mix by the way of moderate-speed mixer, and join in extruder three Row extrusion；
Blown film:
It is sent in inflation film manufacturing machine process in the way of downward-blowing water-cooling by the material that extruder one, extruder two and extruder three are extruded Go out semi-finished product；
Traction, rolling:
Semi-finished product obtained by blown film are drawn through carry-over pinch rolls group again, finally carries out rolling, obtain finished product.
As preferably, the blender rotating speed of high-speed stirred is 800～1000rpm, and the blender rotating speed of moderate-speed mixer is 600 ～800rpm.
As preferably, the thickness of inner layer film is the 25%～35% of total film thickness, and the thickness of mesopelagic layer is the 35% of total film thickness ～45%, the thickness of outer membrane is the 25%～35% of total film thickness.
In sum, the method have the advantages that
1. due to the addition of modenite powder in inner layer film, mesopelagic layer and outer membrane, so improve the permeability of finished film, Desirably prevent rotting of vegetables and fruits；
2. all contain antibacterial due to inner layer film and mesopelagic layer, thus be effectively improved the antibacterial ability of finished film；
3. antifoggant can infiltrate from matrix, and defines antifog monolayer on inner layer film, it is therefore prevented that air In moisture on film, form water droplet, thus serve anti-fog effect.
Accompanying drawing explanation
Fig. 1 is the process chart of nanometer titanium dioxide antibiotic film.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment one:
The preparation of raw material of inner layer film:
S1, the 3kg modenite powder in component A is stirred 5 minutes under 800rpm rotating speed after to be milled into 200～400 purposes thin Degree carries out standby；
S2,110kg ldpe resin by component A, 120kg type low density polyethylene resin, 9kg polypropylene, 10kg nano titanium oxide, 1kg arhat pitch, 1kg sabinol, 2kg chitosan, 2kg perfluoroalkyl Folium hydrangeae strigosae alkali, 2kg polyol resin The mode that fat acid esters, 6kg SiO 2 powder, 2kg titanate esters, 1kg oleamide and 3kgEVA stir under 800rpm rotating speed Uniformly mixing obtains mixture one；
S3, mixture one mixed melting obtained in the modenite powder obtained in S1 and S2 is joined in extruder one and carries out Extrusion；
The preparation of raw material of mesopelagic layer:
D1: be milled into after the mode that the 1kg modenite powder in B component stirs 7 minutes under 800rpm rotating speed is mixed 300～ The fineness of 500 mesh carries out standby；
D2: by the 85kg ldpe resin in B component, 105kg type low density polyethylene resin, 8kg polypropylene, 7kg nano titanium oxide, 4kg ethanolamine, 5kg perfluoroalkyl Folium hydrangeae strigosae alkali, 5kg polyol fatty acid ester, 3kg silicon dioxide powder The mode that end, 1kg titanate esters, 1kg oleamide and 2kgEVA stir under 800rpm rotating speed uniformly mixes acquisition mixture two；
D3: mixture two mixed melting obtained in the modenite powder obtained in D1 and D2 is joined in extruder two and carries out Extrusion；
The preparation of raw material of outer membrane:
By 100kg ldpe resin, 105kg type low density polyethylene resin, 8kg polypropylene, 3kg modenite Powder, 7kg WH-5A/B organic silicon type thermostable heat-conductive glue, 3kg titanate esters, 2kg oleamide and 1kgEVA are at 600rpm rotating speed After lower uniformly mixing melted, and join in extruder three and extrude；
Blown film: the material that extruder one, extruder two and extruder three are extruded is sent in inflation film manufacturing machine the side with downward-blowing water-cooling Formula processes semi-finished product；
Traction, rolling: the semi-finished product obtained by blown film are drawn through carry-over pinch rolls group again, finally carries out rolling, obtain finished film.
Embodiment two:
The preparation of raw material of inner layer film:
S1, the 6kg modenite powder in component A is stirred 5 minutes under 1000rpm rotating speed after to be milled into 200～400 purposes thin Degree carries out standby；
S2,120kg ldpe resin by component A, 130kg type low density polyethylene resin, 16kg polypropylene, 16kg nano titanium oxide, 3kg arhat pitch, 3kg sabinol, 4kg chitosan, 3kg perfluoroalkyl ethers, 3kg acetyl group fluoroform Base phenyl valyl glycine, 3kg hydroxypropyl Pentamethylene oxide. triol, 10kg SiO 2 powder, 5kg titanate esters, 3kg oleic acid acyl The mode that amine and 6kgEVA stir under 1000rpm rotating speed uniformly mixes acquisition mixture one；
S3, mixture one mixed melting obtained in the modenite powder obtained in S1 and S2 is joined in extruder one and carries out Extrusion；
The preparation of raw material of mesopelagic layer:
D1: be milled into 300～500 purposes after being stirred 7 minutes under 1000rpm rotating speed by the 3kg modenite powder in B component thin Degree carries out standby；
D2: by the 95kg ldpe resin in B component, 110kg type low density polyethylene resin, 15kg polypropylene, 12kg nano titanium oxide, 9kg ethanolamine, 5kg perfluoroalkyl ethers, 5kg acetyl group trifluoromethyl valyl glycine, 5kg hydroxypropyl Pentamethylene oxide. triol, 6kg SiO 2 powder, 3kg titanate esters, 3kg oleamide and 5kgEVA are at 1000rpm Under rotating speed, the mode of stirring uniformly mixes acquisition mixture two；
D3: mixture two mixed melting obtained in the modenite powder obtained in D1 and D2 is joined in extruder two and carries out Extrusion；
The preparation of raw material of outer membrane:
By 110kg ldpe resin, 115kg type low density polyethylene resin, 15kg polypropylene, 6kg modenite Powder, 16kg WH-5A/B organic silicon type thermostable heat-conductive glue, 5kg titanate esters, 3kg oleamide and 4kgEVA exist by appointment quality Under 800rpm rotating speed uniformly melted after mixing, and join in extruder three and extrude；
Blown film: the material that extruder one, extruder two and extruder three are extruded is sent in inflation film manufacturing machine the side with downward-blowing water-cooling Formula processes semi-finished product；
Traction, rolling: the semi-finished product obtained by blown film are drawn through carry-over pinch rolls group again, finally carries out rolling, obtain finished film.
Embodiment three:
The preparation of raw material of inner layer film:
S1, the 4.5kg modenite powder in component A is stirred 5 minutes under 900rpm rotating speed after be milled into 200～400 purposes Fineness carries out standby；
S2,115kg ldpe resin by component A, 125kg type low density polyethylene resin, 13kg polypropylene, 13kg nano titanium oxide, 2kg arhat pitch, 2kg sabinol, 3kg chitosan, 3kg Rikemal PO 200,3kg acetyl group three Trifluoromethylphenyl valyl glycine, 1kg hydroxypropyl Pentamethylene oxide. triol, 8kg SiO 2 powder, 3.5kg titanate esters, 2kg The mode that oleamide and 4.5kgEVA stir under 900rpm rotating speed uniformly mixes acquisition mixture one；
S3, mixture one mixed melting obtained in the modenite powder obtained in S1 and S2 is joined in extruder one and carries out Extrusion；
The preparation of raw material of mesopelagic layer:
D1: be milled into 300～500 purposes after being stirred 7 minutes under 900rpm rotating speed by the 2kg modenite powder in B component thin Degree carries out standby；
D2: by the 90kg ldpe resin in B component, 108kg type low density polyethylene resin, 11.5kg poly-third Alkene, 9.5kg nano titanium oxide, 6.5kg ethanolamine, 4.5kg Rikemal PO 200,4.5kg acetyl group trifluoromethyl Valyl glycine, 3.5kg hydroxypropyl Pentamethylene oxide. triol, 4kg SiO 2 powder, 2kg titanate esters, 2kg oleamide and The mode that 3.5kgEVA stirs under 900rpm rotating speed uniformly mixes acquisition mixture two；
D3: mixture two mixed melting obtained in the modenite powder obtained in D1 and D2 is joined in extruder two and carries out Extrusion；
The preparation of raw material of outer membrane:
By 105kg ldpe resin, 110kg type low density polyethylene resin, 12.5kg polypropylene, 4.5kg mercerising Zeolite powder, 11.5kg WH-5A/B organic silicon type thermostable heat-conductive glue, 4kg titanate esters, 2.5kg oleamide and 2.5kgEVA press Specify quality uniformly melted after mixing under 900rpm rotating speed, and join in extruder three and extrude；
Blown film: the material that extruder one, extruder two and extruder three are extruded is sent in inflation film manufacturing machine the side with downward-blowing water-cooling Formula processes semi-finished product；
Traction, rolling: the semi-finished product obtained by blown film are drawn through carry-over pinch rolls group again, finally carries out rolling, obtain finished film.
Embodiment four:
The preparation of raw material of inner layer film:
S1, the 6kg modenite powder in component A is stirred 5 minutes under 900rpm rotating speed after to be milled into 200～400 purposes thin Degree carries out standby；
S2,110kg ldpe resin by component A, 130kg type low density polyethylene resin, 13kg polypropylene, 16kg nano titanium oxide, 3kg arhat pitch, 1kg sabinol, 3kg chitosan, 3kg perfluoroalkyl Folium hydrangeae strigosae alkali, 3kg perfluoroalkyl Ether, 1kg Rikemal PO 200,8kg SiO 2 powder, 2kg titanate esters, 1kg oleamide and 3kgEVA turn at 1000rpm The mode of the lower stirring of speed uniformly mixes acquisition mixture one；
S3, mixture one mixed melting obtained in the modenite powder obtained in S1 and S2 is joined in extruder one and carries out Extrusion；
The preparation of raw material of mesopelagic layer:
D1: be milled into 300～500 purposes after being stirred 7 minutes under 800rpm rotating speed by the 1kg modenite powder in B component thin Degree carries out standby；
D2: by the 85kg ldpe resin in B component, 110kg type low density polyethylene resin, 15kg polypropylene, 12kg nano titanium oxide, 6.5kg ethanolamine, 4kg perfluoroalkyl Folium hydrangeae strigosae alkali, 3kg perfluoroalkyl ethers, 3kg propylene glycol two oleic acid The mode that ester, 6kg SiO 2 powder, 4kg titanate esters, 2.5kg oleamide and 2.5kgEVA stir under 1000rpm rotating speed Uniformly mixing obtains mixture two；
D3: mixture two mixed melting obtained in the modenite powder obtained in D1 and D2 is joined in extruder two and carries out Extrusion；
The preparation of raw material of outer membrane:
By 110kg ldpe resin, 105kg type low density polyethylene resin, 15kg polypropylene, the boiling of 4.5kg mercerising Stone powder, 16kg WH-5A/B organic silicon type thermostable heat-conductive glue, 5kg titanate esters, 3kg oleamide and 4kgEVA turn at 900rpm After the lower uniformly mixing of speed melted, and join in extruder three and extrude；
Blown film: the material that extruder one, extruder two and extruder three are extruded is sent in inflation film manufacturing machine the side with downward-blowing water-cooling Formula processes semi-finished product；
Traction, rolling: the semi-finished product obtained by blown film are drawn through carry-over pinch rolls group again, finally carries out rolling, obtain finished film.
Nanometer titanium dioxide antibiotic film embodiment one to embodiment four made is together with the most common preservative film Carry out antibacterial test.First at nanometer titanium dioxide antibiotic film and the most common preservative film of embodiment one to embodiment four Upper dripping above contains 100 cfu/cm2Bacterium colony to be detected, and be placed in 30 DEG C of calorstats 2 hours, detection afterwards obtains following number According to:
Embodiment one Embodiment two Embodiment three Embodiment four Comparative example
Staphylococcus aureus/cfu/cm2 3 1 2 2 102
Aerugo PAO1/ cfu/cm2 4 1 1 2 94
Salmonella/cfu/cm2 3 0.5 2 2 96
Escherichia coli/cfu/cm2 2 1 1 1 101
Can be drawn by above-mentioned data, the nanometer titanium dioxide antibiotic film of embodiment one to embodiment four is compared common fresh-keeping There is for film stronger antibacterial ability.
Nanometer titanium dioxide antibiotic film embodiment one to embodiment four made is together with the most common preservative film Carry out antifog test.First the nanometer titanium dioxide antibiotic film of embodiment one to embodiment four of the same area and common guarantor are taken Fresh film covers on the container filling the same volume water yield, and is put in 30 DEG C of calorstats 0.5 hour, and detection afterwards obtains following number According to:
Embodiment one Embodiment two Embodiment three Embodiment four Comparative example
Water droplet amount/g/cm2 0 0 0 0 1.5
It is appreciated that from above-mentioned data the nanometer titanium dioxide antibiotic film of embodiment one to embodiment four compares common preservative film For there is stronger anti misting capability.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art The present embodiment can be made after reading this specification by member as required does not has the amendment of creative contribution, but as long as at this All protected by Patent Law in the right of invention.

Claims (10)

1. a nanometer titanium dioxide antibiotic film, it is characterised in that: by weight, including
Component A:
Ldpe resin 110～120 parts
Type low density polyethylene resin 120～130 parts
Polypropylene 9～16 parts
Nano titanium oxide 10～16 parts
Arhat pitch 1～3 parts
Sabinol 1～3 parts
Chitosan 2～4 parts
Antifoggant 4～9 parts
Modenite powder 3～6 parts
SiO 2 powder 6～10 parts
Titanate esters 2～5 parts
Oleamide 1～3 parts
EVA 3～6 parts；
B component:
Ldpe resin 85～95 parts
Type low density polyethylene resin 105～110 parts
Polypropylene 8～15 parts
Nano titanium oxide 7～12 parts
Ethanolamine 4～9 parts
Antifoggant 10～15 parts
Modenite powder 1～3 parts
SiO 2 powder 3～6 parts
Titanate esters 1～3 parts
Oleamide 1～3 parts
EVA 2～5 parts;
Component C:
Ldpe resin 100～110 parts
Type low density polyethylene resin 105～115 parts
Polypropylene 8～15 parts
Modenite powder 3～6 parts
Binding agent 7～16 parts
Titanate esters 3～5 parts
Oleamide 2～3 parts
EVA 1～4 parts.
A kind of nanometer titanium dioxide antibiotic film the most according to claim 1, it is characterised in that: by weight, including
Component A:
Ldpe resin 105 parts
Type low density polyethylene resin 125 parts
Polypropylene 13 parts
Nano titanium oxide 13 parts
Arhat pitch 2 parts
Sabinol 2 parts
Chitosan 3 parts
Antifoggant 7 parts
4.5 parts of modenite powder
SiO 2 powder 8 parts
Titanate esters 3.5 parts
Oleamide 2 parts
EVA 4.5 parts；
B component:
Ldpe resin 90 parts
Type low density polyethylene resin 108 parts
Polypropylene 11.5 parts
Nano titanium oxide 9.5 parts
Ethanolamine 6.5 parts
Antifoggant 12.5 parts
2 parts of modenite powder
SiO 2 powder 4 parts
Titanate esters 2 parts
Oleamide 2 parts
EVA 3.5 parts；
Component C:
Ldpe resin 105 parts
Type low density polyethylene resin 110 parts
Polypropylene 12.5 parts
4.5 parts of modenite powder
Binding agent 11.5 parts
Titanate esters 4 parts
Oleamide 2.5 parts
EVA 2.5 parts.
A kind of nanometer titanium dioxide antibiotic film the most according to claim 1 and 2, it is characterised in that: described silicon dioxide powder The surface at end is coated with starch.
A kind of nanometer titanium dioxide antibiotic film the most according to claim 1, it is characterised in that: described antifoggant is that fluorine class is non- Ionic surface active agent and the mixture of hc-surfactant.
A kind of nanometer titanium dioxide antibiotic film the most according to claim 4, it is characterised in that: described fluorine class non-ionic surface Activating agent include the one in perfluoroalkyl Folium hydrangeae strigosae alkali, perfluoroalkyl ethers and acetyl group trifluoromethyl valyl glycine or Several.
A kind of nanometer titanium dioxide antibiotic film the most according to claim 4, it is characterised in that: described hc-surfactant Including one or more in polyol fatty acid ester, hydroxypropyl Pentamethylene oxide. triol and Rikemal PO 200.
A kind of nanometer titanium dioxide antibiotic film the most according to claim 1, it is characterised in that: described binding agent is WH-5A/ B organic silicon type thermostable heat-conductive glue.
8. the preparation method of a kind of nanometer titanium dioxide antibiotic film as described in any one claim in claim 1 to 7, Comprise the following steps:
The preparation of raw material of inner layer film:
S1, by the modenite powder in component A by specifying quality to be entered by the fineness being milled into 200～400 mesh after high-speed stirred Row is standby；
S2, ldpe resin by component A, type low density polyethylene resin, polypropylene, nano titanium oxide, Arhat pitch, sabinol, chitosan, antifoggant, SiO 2 powder, titanate esters, oleamide and EVA are passed through by appointment quality The mode of high-speed stirred uniformly mixes acquisition mixture one；
S3, mixture one mixed melting obtained in the modenite powder obtained in S1 and S2 is joined in extruder one and carries out Extrusion；
The preparation of raw material of mesopelagic layer:
D1: by the modenite powder in B component by specifying quality to be entered by the fineness being milled into 300～500 mesh after high-speed stirred Row is standby；
D2: by the ldpe resin in B component, type low density polyethylene resin, polypropylene, nano titanium oxide, Ethanolamine, antifoggant, SiO 2 powder, titanate esters, oleamide and EVA are by specifying quality equal by the way of high-speed stirred Even mixing obtains mixture two；
D3: mixture two mixed melting obtained in the modenite powder obtained in D1 and D2 is joined in extruder two and carries out Extrusion；
The preparation of raw material of outer membrane:
By ldpe resin, type low density polyethylene resin, polypropylene, modenite powder, binding agent, titanate esters, Oleamide and EVA are by melted after specifying quality uniformly to mix by the way of moderate-speed mixer, and join in extruder three Row extrusion；
Blown film:
It is sent in inflation film manufacturing machine process in the way of downward-blowing water-cooling by the material that extruder one, extruder two and extruder three are extruded Go out semi-finished product；
Traction, rolling:
Semi-finished product obtained by blown film are drawn through carry-over pinch rolls group again, finally carries out rolling, obtain finished product.
The preparation method of a kind of nanometer titanium dioxide antibiotic film the most according to claim 8, it is characterised in that: high-speed stirred Blender rotating speed be 800～1000rpm, the blender rotating speed of moderate-speed mixer is 600～800rpm.
The preparation method of a kind of nanometer titanium dioxide antibiotic film the most according to claim 8, it is characterised in that: inner layer film Thickness is total film thickness 25%～35%, the thickness of mesopelagic layer is the 35%～45% of total film thickness, and the thickness of outer membrane is total The 25%～35% of film thickness.
CN201610616456.XA 2016-07-29 2016-07-29 A kind of nanometer titanium dioxide antibiotic film and preparation method thereof Pending CN106243472A (en)

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CN109776916A (en) * 2019-01-12 2019-05-21 浙江天成医药包装有限公司 A kind of polyethylene composite film
CN111234353A (en) * 2020-03-26 2020-06-05 江阴市德惠热收缩包装材料有限公司 Durian preservative film and preparation method thereof
CN111267441A (en) * 2018-12-04 2020-06-12 南亚塑胶工业股份有限公司 Vegetable and fruit preservative film and preparation method thereof
CN111303525A (en) * 2020-03-26 2020-06-19 江阴市德惠热收缩包装材料有限公司 PE antifogging antibacterial fresh-keeping shrink film and preparation method thereof
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CN113831566A (en) * 2021-10-25 2021-12-24 江阴市德惠热收缩包装材料有限公司 Antifog antibiotic PET sheet

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN112601512A (en) * 2018-08-23 2021-04-02 莱雅公司 Cosmetic composition comprising acetyltrifluoromethylphenylvalylglycine
CN111267441A (en) * 2018-12-04 2020-06-12 南亚塑胶工业股份有限公司 Vegetable and fruit preservative film and preparation method thereof
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CN111234353A (en) * 2020-03-26 2020-06-05 江阴市德惠热收缩包装材料有限公司 Durian preservative film and preparation method thereof
CN111303525A (en) * 2020-03-26 2020-06-19 江阴市德惠热收缩包装材料有限公司 PE antifogging antibacterial fresh-keeping shrink film and preparation method thereof
CN113831566A (en) * 2021-10-25 2021-12-24 江阴市德惠热收缩包装材料有限公司 Antifog antibiotic PET sheet

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Application publication date: 20161221